Their oil is good but I don't know that it's Royal. Check it out to see if it's a Group III or IV Base oil. Pour Point comparison will be revealing..so, since we're kinda on the subject of oil filters...
i don't think my oil filter has been changed recently at all, at least for the last 2 oil changes when i started looking and the last 3 times i saw it on a lift
not sure anyone at the little oil change place i take it to knows or cares to change oil filters, i just figured they did it all as part of the "package"
they did change one of my license plate bulbs for free though, so maybe we're still even
hows this one? https://www.amazon.com/gp/product/B003L2XPBK/
i have no idea how "good" royal purple is, i just like their branding and the reviews seem okay
Filter could be made by WIX based on the bypass valve being located at the base.
If the Mechanics are working by the job, hard to say what you are getting. Everything is rushed to maximize on the number of jobs.
Compare the color of your oil before and after the oil change. Check the filter and drain plug for tightness. Make sure they reinstalled the filler cap (a common omission).